CLASS Basic Substance
USE Resilience
COMPOSITION Chitosan hydrochloride
DESTINATION Conventional and organic farming


PLINIUS S is a plant resistance enhancer containing the active ingredient Chitosan, derived from the exoskeleton of crustaceans. This Basic Substance acts as an elicitor increasing plant resistance against

pathogenic fungi and bacteria.  Plants recognize chitosan derivatives as foreign molecules (“non self”) considered potentially pathogenic, activating the defence mechanisms in an intense and rapid way. This creates the conditions for metabolic decline of pathogens and its reproductive structures (spores).

Chitosan hydrochloride is an authorised Basic Substance in accordance with Regulation (EU) No 563/2014 implemented under Regulation (EC) 1107/2009.

PLINIUS S chitosano

Mode of Application

PLINIUS S should be applied as a preventive foliar application in integrated or organic programmes, in periods of fast vegetative growth, in mixture with protectant products.

On vegetables, salads and baby leaf in greenhouse and open field, use 2-3 L/Ha in 300 to 600 L water/Ha.

On vineyard (wine and table grape) and orchard use 2-3 L/Ha in 250 to 1000 L water/Ha.

On cereals, forage, aromatics and spices, use 2-3 L/Ha in 200 to 500 L water/Ha.

Increase water volume on account of vegetation density. Use “Fine/Medium” type nozzles.


The product is miscible with copper and sulfur salts. Test compatibility with other products. Do not mix with acid or acid forming products. Do not apply in case of high temperatures.

Read label and MSDS carefully before use.

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